README.md in govuk_ab_testing-0.1.2 vs README.md in govuk_ab_testing-0.1.3

@@ -110,11 +110,10 @@
 # test/controllers/party_controller_test.rb
 class PartyControllerTest < ActionController::TestCase
   include GovukAbTesting::MinitestHelpers
 
   should "show the original " do
-    analytics_dimension = 123
-    setup_ab_variant("your_ab_test_name", "B", analytics_dimension)
+    setup_ab_variant("your_ab_test_name", "B") # optionally pass in a analytics dimension as the third argument
 
     get :show
 
     assert_unaffected_by_ab_test
   end